The Kienzle 51/0E is a manual wind mechanical watch movement introduced around 1925. It features a bimetallic screw balance and a stem mechanism without a setting-lever spring. The bridge shapes of the movement may vary from those depicted in the Ebel 8.75''' reference. The distinctions between the Kienzle 51/0E and other movements such as the 159, 185, 208, 212, 220, 238, 246, 251, 259, 261, and 277 are not specified. The Kienzle 51/0E incorporates functions such as a sub-second display.